Passage: A commercial airline recently observed that flight routes equipped with newly upgraded in-flight entertainment systems recorded a 15 percent higher passenger satisfaction rating over a six-month trial period than routes retaining standard systems. The airline's management concluded that installing these upgraded entertainment systems was the direct cause of the higher passenger satisfaction, and therefore ordered the immediate installation of the systems across all remaining aircraft to boost overall customer approval.
Statement: The management's argument is vulnerable to criticism because it assumes that an observed correlation between upgraded entertainment systems and higher passenger satisfaction proves a direct causal relationship, without ruling out alternative explanations for the higher ratings on those specific routes.
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